Overview
The ADP7156ARDZ-3.3-R7 is a high-performance linear voltage regulator produced by Analog Devices Inc. This regulator is designed to operate from an input voltage range of 2.3 V to 5.5 V and can deliver up to 1.2 A of output current. It is particularly optimized for radio frequency (RF) applications due to its ultralow noise and high power supply rejection ratio (PSRR). The device features an advanced proprietary architecture that ensures excellent line and load transient response, even with a small 10 µF ceramic output capacitor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 V to 5.5 V | V |
| Output Voltage | 3.3 V (fixed) | V |
| Maximum Load Current | 1.2 A | A |
| Total Integrated Noise (100 Hz to 100 kHz) | 0.9 µV rms | µV |
| Noise Spectral Density (10 kHz to 1 MHz) | 1.7 nV/√Hz | nV/√Hz |
| Package Type | SOIC-8 | - |
| Thermal Shutdown Threshold | 150 °C | °C |
| UnderVoltage Lockout (UVLO) Rising | 2.22 V to 2.29 V | V |
| UnderVoltage Lockout (UVLO) Falling | 1.95 V to 2.02 V | V |
| UVLO Hysteresis | 200 mV | mV |
Key Features
- Ultralow noise: 0.9 µV rms total integrated noise from 100 Hz to 100 kHz and 1.7 nV/√Hz noise spectral density from 10 kHz to 1 MHz.
- High power supply rejection ratio (PSRR) for excellent line and load transient response.
- Maximum load current of 1.2 A.
- Input voltage range of 2.3 V to 5.5 V.
- Fixed output voltage of 3.3 V.
- Compact SOIC-8 package for small footprint applications.
- Thermal shutdown and under-voltage lockout (UVLO) for protection.
- Low shutdown current consumption of 0.2 µA at room temperature.
Applications
The ADP7156ARDZ-3.3-R7 is ideal for various applications requiring low noise and high PSRR, including:
- Radio Frequency (RF) circuits and systems.
- Wireless communication devices.
- Medical devices requiring low noise power supplies.
- Aerospace and defense systems.
- High-performance audio and video equipment.
Q & A
- What is the input voltage range of the ADP7156ARDZ-3.3-R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum load current the ADP7156ARDZ-3.3-R7 can deliver?
The maximum load current is 1.2 A.
- What is the typical noise level of the ADP7156ARDZ-3.3-R7?
The typical noise level is 0.9 µV rms from 100 Hz to 100 kHz.
- What package type is the ADP7156ARDZ-3.3-R7 available in?
The device is available in an SOIC-8 package.
- What is the thermal shutdown threshold of the ADP7156ARDZ-3.3-R7?
The thermal shutdown threshold is 150 °C.
- What are the under-voltage lockout (UVLO) thresholds for the ADP7156ARDZ-3.3-R7?
The UVLO rising threshold is between 2.22 V and 2.29 V, and the falling threshold is between 1.95 V and 2.02 V.
- What is the UVLO hysteresis of the ADP7156ARDZ-3.3-R7?
The UVLO hysteresis is 200 mV.
- What are some typical applications for the ADP7156ARDZ-3.3-R7?
Typical applications include RF circuits, wireless communication devices, medical devices, aerospace and defense systems, and high-performance audio and video equipment.
- How much current does the ADP7156ARDZ-3.3-R7 consume in shutdown mode?
The shutdown current consumption is typically 0.2 µA at room temperature.
- What type of capacitor is recommended for use with the ADP7156ARDZ-3.3-R7?
A 10 µF ceramic output capacitor is recommended for optimal performance.
